Cooking-stove



' B. T. RONEY.

Cooking Stove.

atented April 17,1 49.

n rrrzna mwum m Washinglom u. c

UNITED STATES PATENT OFFICE.

B. T. RONEY, OF NEWVTOVVN, PENNSYLVANIA.

COOKING-STOVE.

Specification of Letters Patent No. 6,349, dated April 17, 1849.

To all whom it may concern:

Be it known that I, B. T. RONEY, of Newtown, in the county of Bucks andState of Pennsylvania, have invented certain new and useful Improvementsin Cooking-Stoves, and that the following is a full, clear, and exactdescription of the principle or character which distinguishes them fromall other things before known and of the usual manner of making,modifying, and using the same, reference being had to the accompanyingdrawing, in which Figure 1, is an isometrical view of the stove with thecovers and oven door and oven bottom removed to show the internalstructure. Fig. 2, is a vertical longitudinal section through the centerof the stove.

The nature of my invention consists first in forming a compound flue forcarrying the heat from the top, and concentrating it at the bottom, andpreventing its outward radition; and secondly, the continuation of theair chamber up in front, so that it can be brought into use through alattice door, for the purpose of roasting, and so constructed as to havea drop door between it and the ash pan, by which means the ashes may betaken out in front, as hereafter described; and lastly, the formation ofthe top frame around the holes of the boiler, by casting a recess in it,which communicates with the external air by which the plate is preservedagainst the action of the intense heat below.

The construction is as follows: The exterior of the stove is nearlycubical, the tire chamber a being over the oven; there is a depression 6in the front of this chamber for the ash pit, covered by a grate a;there is a descending flue cl at the back of the stove, and in eachcorner at the front are also two small descending flues c that open intothe fire chamber; these all join in a large flue cl at the bottom, anddescend into a recessed flue f at the center, at 00 and thence up theback to the exit pipes. Between the fire chamber and oven top there is aspace g, which I call an air flueyit opens into the oven at h, and atthe front end into a space a between the flues e, that extends from theinclined plate y (that disconnects it from the fire chamber at the top)to the bottom of the stove in front. On a level with the ash pit bottomin front, there is a drop damper or door 2', that cuts OK this space, asclearly shown in the drawing, and in the front plate there is a door is,in which there is a lattice damper. The drop door above alluded to,opens into the ash pan when down, and when up forms the plate between itand the front air space or flue as above set forth. .The lattice doorand damper may be connected, so as to open and shut together if desired;the lower end of the above named air flue 2 connects with a bottom oneit" below the flue (Z above named, and said flue k is divided at therecess f, passing back on each side of it to the ascending flue, intowhich it opens. A revolving lattice damper Z is placed at the back ofthe fire chamber for the usual direct draft, and there is a movableplate at in said chamber to enlarge or diminish the space for fuel. Thedraft may be admitted at r at the side. In the space of the top platebetween the boiler holes there is a recess cast, into which severalholes a from the top are made; this serves to protect the plate from theaction of the fire, and render it more durable.

The operation of this stove is as follows: Vhen the heat from the firedescends down the two corner flues e in front and the flue (Z behind,which latter is within the outer flue, so as to radiate very little heatoutward, it passes under the oven bottom, where there is a stratum ofhot air below it to protect it from being cooled. The heat rises in theoven, .and instead of concentrating there and heating the open too muchabove, it

passes off through the upper flue, which prevents the radiation of heatfrom the fire hearth in too great proportion, and conveys said heat downto the bottom, by which the heat is equalized in such manner as to bakeequally above and below. The red arrows show the direction of the draftfrom fire, the blue arrows the direction of heated air. They are dottedwhen the flues pass behind a partition in the section.

Having thus fully described my improvements, what I claim therein as newand for which I desire to secure Letters Patent, is-

l. Forming a compound flue substantially as set forth, by conveying thesmoke flue around the bottom and sides of the oven, and an air flue soarranged as to convey off the surplus heat from the top of the oven tothe bottom of the stove by Which the heat I drop damper or door 2' inthe fire chamber is concentrated there in any proportion to open acommunication With the ash pan desired. for the purposes. abovedesignated. 10

2. I also claim extending the air chamber B. T. RONEY. 5 up the front,Where it can be used for roast- WVitnesses: K ing, substantially asherein described. I also J. J. GREENOUGH, claim in combination With theflue z the WM. GREENOUGH.

